CN211235148U - Multi-point VOCs on-line continuous sampling monitoring device - Google Patents
Multi-point VOCs on-line continuous sampling monitoring device Download PDFInfo
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- CN211235148U CN211235148U CN201921606816.3U CN201921606816U CN211235148U CN 211235148 U CN211235148 U CN 211235148U CN 201921606816 U CN201921606816 U CN 201921606816U CN 211235148 U CN211235148 U CN 211235148U
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Abstract
The utility model discloses an online continuous sampling monitoring devices of multiple spot position VOCs. The multi-point VOCs online continuous sampling monitoring device comprises an analysis instrument, an air exhaust mechanism, an air storage mechanism, a sampling pipe, a communicating piece, a first control valve and a second control valve; the number of the sampling pipes is multiple, each sampling pipe is communicated with the communicating piece through the first control valve, the communicating piece is communicated with the gas storage mechanism, and the gas storage mechanism is communicated with the analysis instrument and the air exhaust mechanism through the second control valve. This online sampling monitoring devices in succession of multiple spot position VOCs can carry out online sampling in succession to the VOCs of remote different positions in the short time to carry out quantitative determination through analytical instrument to unknown VOCs in the environment.
Description
Technical Field
The utility model relates to an environmental protection field especially relates to an online continuous sampling monitoring devices of multiple spot position VOCs.
Background
At present, for the sampling mode of online monitoring of the components of known target VOCs (volatile organic compounds) at a plurality of point locations within the diameter range of 1km, a sampling pipe with the length not exceeding 100m is directly configured through a single detection instrument, and the VOCs in the environment near the detection instrument is monitored. In the sampling mode of monitoring the online monitoring of the components of the known target VOCs (volatile organic compounds) of a plurality of point locations in a large-scale area, a plurality of instruments are generally used for online monitoring the VOCs at different positions or manually carrying portable instruments to move on line on a large scale, the use cost of the plurality of instruments is high simultaneously during continuous online monitoring, and manpower resources are excessively consumed when the instruments are manually carried to move frequently.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a multi-point continuous sampling monitoring device for online continuous sampling of VOCs at different positions in a short time, and quantitatively detecting unknown VOCs in the environment through an analyzer.
A multi-point VOCs online continuous sampling monitoring device comprises an analysis instrument, an air exhaust mechanism, an air storage mechanism, a sampling pipe, a communicating piece, a first control valve and a second control valve; the number of the sampling pipes is multiple, each sampling pipe is communicated with the communicating piece through the first control valve, the communicating piece is communicated with the gas storage mechanism, and the gas storage mechanism is communicated with the analysis instrument and the air exhaust mechanism through the second control valve.
In one embodiment, the analytical instrument is an air detection instrument.
In one embodiment, the pumping mechanism is a suction pump.
In one embodiment, the second control valve is a three-way solenoid valve or a two-way solenoid valve.
In one embodiment, the number of the gas storage mechanisms is multiple, the multiple gas storage mechanisms are arranged in parallel and are all communicated with the communicating member, the multiple gas storage mechanisms are all communicated with the analysis instrument through the corresponding second control valves, and the multiple gas storage mechanisms are all communicated with the air pumping mechanism through the corresponding second control valves.
In one embodiment, the number of the air pumping mechanisms is at least two, and each air pumping mechanism is at least correspondingly communicated with one air storage mechanism.
In one embodiment, the number of the gas storage mechanisms is the same as the number of the air pumping mechanisms, a plurality of the gas storage mechanisms correspond to a plurality of the air pumping mechanisms one by one, and each of the gas storage mechanisms is communicated with the corresponding air pumping mechanism through the corresponding second control valve.
In one embodiment, the air storage device further comprises an air pressure detection mechanism, and the air pressure detection mechanism is arranged on the pipeline between the air storage mechanism and the communicating piece.
In one embodiment, the air pressure detection mechanism is an air pressure gauge.
In one embodiment, the length of the sampling tube is 20-100 meters.
The utility model discloses an online sampling monitoring devices in succession of multiple spot position VOCs sets up, increases gas storage mechanism, stores the sample that different length sampling pipes gathered through gas storage mechanism to send to analytical instrument under invariable atmospheric pressure value and detect, gas storage mechanism can also reduce the detection limit under the remote sampling of VOCs. When atmospheric pressure value in the gas storage mechanism reaches the default, then indicates that the gas detection that this sampling pipe gathered accomplishes, samples and the analysis to the sampling pipe of difference in proper order according to time sequence, compares traditional technique, the utility model discloses a continuous sampling and analysis. The utility model discloses an online sampling monitoring devices in succession of multiple spot position VOCs can carry out online sampling in succession to the VOCs of remote different positions in the short time to carry out quantitative determination through analytical instrument unknown VOCs in to the environment.
The utility model discloses an online sampling monitoring devices in succession of multiple spot position VOCs sets up the atmospheric pressure value that atmospheric pressure detection mechanism was used for measuring gas storage mechanism in gas storage mechanism department, judges gas storage mechanism storage condition and whether detect the completion through the atmospheric pressure value that detects, works as atmospheric pressure value in the gas storage mechanism reaches the default, then indicates that the gas detection that this sampling pipe gathered accomplishes, can implement the collection and the analysis of next sampling pipe.
The utility model discloses an online sampling monitoring devices in succession of multiple spot position VOCs has set up many sampling pipes, switches sampling pipe passageway through each first control valve, samples different sampling pipelines according to time sequence in proper order.
The utility model discloses an online sampling monitoring devices in succession of multiple spot position VOCs, the fast empty gas detection surveys instrument of check-out time is chooseed for use to analytical instrument after the sampling, can carry out qualitative quantitative analysis to unknown VOCs in the short time, improves detection efficiency and detectivity.
Drawings
Fig. 1 is a schematic view of an on-line continuous sampling monitoring apparatus for multi-point VOCs according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an online continuous sampling monitoring device for multi-point VOCs according to another embodiment of the present invention.
Description of the reference numerals
10: a multi-point VOCs online continuous sampling monitoring device; 100: an analytical instrument; 200: an air extraction mechanism; 300: a gas storage mechanism; 400: a sampling tube; 500: a communicating member; 600: a first control valve; 700: a second control valve; 800: an air pressure detection mechanism.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an embodiment of the present invention provides an online continuous sampling monitoring device 10 for multi-point VOCs, which includes an analysis instrument 100, an air pumping mechanism 200, an air storage mechanism 300, a sampling tube 400, a communicating member 500, a first control valve 600, and a second control valve 700.
The number of the sampling pipes 400 is plural, and each sampling pipe 400 is communicated with the communicating member 500 through the first control valve 600. The length of the sampling tube 400 is 20-100 meters, for example, the length of the sampling tube 400 is 20 meters, 30 meters, 50 meters, 100 meters, or other non-integer value. The communicating member 500 communicates with the gas storage mechanism 300. The gas storage mechanism 300 is connected to the analysis instrument 100 and the pumping mechanism 200 through the second control valve 700. The first control valve 600 is a two-way solenoid valve.
The utility model discloses an online sampling monitoring devices 10 in succession of multiple spot position VOCs has set up many sampling tube 400, switches sampling tube 400 passageway through each first control valve 600, samples different sampling tube 400 ways according to time sequence in proper order, so can realize sampling in succession according to time sequence.
Further, the analytical instrument 100 is an air detection instrument. The utility model discloses an online sampling monitoring devices 10 in succession of multiple spot position VOCs, the fast empty gas detection surveys instrument of check-out time is chooseed for use to analytical instrument 100 after the sampling, can carry out qualitative and quantitative analysis to unknown VOCs in the short time, when the qualitative and quantitative analysis of the high sensitivity fast of needs, can choose for use the mass spectrograph as analytical instrument 100 to improve detection efficiency and detectivity.
Preferably, the pumping mechanism 200 is a suction pump.
Further, the second control valve 700 is a three-way solenoid valve or a two-way solenoid valve.
In one embodiment, the number of the gas storage means 300 is plural. The plurality of gas storage mechanisms 300 are arranged in parallel and are all communicated with the communicating member 500, the plurality of gas storage mechanisms 300 are all communicated with the analysis instrument 100 through the corresponding second control valves 700, and the plurality of gas storage mechanisms 300 are all communicated with the gas pumping mechanism 200 through the corresponding second control valves 700.
Further, the number of the pumping mechanisms 200 is at least two. Each air pumping mechanism 200 is at least correspondingly communicated with one air storage mechanism 300. Referring to fig. 1, two gas storage mechanisms 300 are correspondingly connected to one pumping mechanism 200, that is, two or more gas storage mechanisms 300 can share one pumping mechanism 200, so that the number of pumping mechanisms 200 can be reduced, and the cost can be saved.
Further, in another embodiment, the number of the air storage mechanisms 300 is the same as that of the air pumping mechanisms 200. The plurality of gas storage mechanisms 300 are in one-to-one correspondence with the plurality of gas pumping mechanisms 200, and each gas storage mechanism 300 is communicated with the corresponding gas pumping mechanism 200 through the corresponding second control valve 700. Referring to fig. 2, each gas storage mechanism 300 is correspondingly connected to one gas pumping mechanism 200, so that although the cost is increased, each gas storage mechanism 300 can correspond to one gas pumping mechanism 200, and can operate independently, thereby avoiding the problem of interference of other gases possibly caused by sharing one gas pumping mechanism 200. In addition, the plurality of air pumping mechanisms 200 and the plurality of air storage mechanisms 300 can simultaneously pump air and store air, so that the sampling time is saved.
Preferably, as shown in fig. 1, the air storage means 300 may be an air storage tank and a pipe connected to the air storage tank.
Further, the utility model discloses an online continuous sampling monitoring devices 10 of multiple spot position VOCs still includes atmospheric pressure detection mechanism 800. The pipelines between the gas storage mechanism 300 and the communicating member 500 are all provided with the air pressure detection mechanism 800. Preferably, the air pressure detection mechanism 800 is a barometer, which can visually display the air pressure value in the current air storage mechanism, so that an operator can conveniently judge whether the analysis is completed. The utility model discloses an online sampling monitoring devices 10 in succession of multiple spot position VOCs, locate to set up atmospheric pressure detection mechanism 800 and be used for measuring the atmospheric pressure value of gas storage mechanism 300 in gas storage mechanism 300, the atmospheric pressure value that detects through atmospheric pressure detection mechanism 800 judges that gas storage mechanism 300 stores the condition and whether detects the completion, atmospheric pressure value when in gas storage mechanism 300 reaches the default, then show that the gas detection that this sampling pipe 400 gathered is accomplished, can implement the collection and the analysis of next sampling pipe 400, so realize the sampling, the continuity of analysis, improve and detect analysis efficiency.
The utility model discloses an online continuous sampling monitoring devices 10 of multiple spot position VOCs when using relates to the online continuous sampling monitoring method of multiple spot position VOCs on a large scale in the monitoring environment, and it includes following step:
the gas storage mechanism 300 is communicated with the analysis instrument 100 through the second control valve 700, the gas pumping mechanism 200 performs sampling through the sampling tube 400, and the gas sampled by the sampling tube 400 is stored in the gas storage mechanism 300 and enters the analysis instrument 100 for analysis.
The air pressure detecting mechanism 800 is used to measure the air pressure value of the air storage mechanism 300, and when the air pressure value in the air storage mechanism 300 reaches a preset value, it indicates that the detection of the gas collected by the sampling tube 400 is completed.
The different sampling tubes 400 are sampled and analyzed sequentially in time order.
The utility model discloses an online sampling monitoring devices 10 settings in succession of multiple spot position VOCs increases gas storage mechanism 300, stores the sample that different length sampling pipes 400 gathered through gas storage mechanism 300 to send to analytical instrument 100 under invariable atmospheric pressure value and detect, gas storage mechanism 300 can also reduce the detection limit under the remote sampling of VOCs. When the air pressure value in the air storage mechanism 300 reaches a preset value, it indicates that the detection of the gas collected by the sampling tube 400 is completed, and the sampling and analysis are sequentially performed on different sampling tubes 400 according to the time sequence. The utility model discloses an online sampling monitoring devices 10 in succession of multiple spot position VOCs can carry out online sampling in succession to the VOCs of remote different positions in the short time to carry out quantitative determination through analytical instrument 100 to unknown VOCs in the environment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A multi-point VOCs online continuous sampling monitoring device is characterized by comprising an analysis instrument, an air exhaust mechanism, an air storage mechanism, a sampling pipe, a communicating piece, a first control valve and a second control valve; the number of the sampling pipes is multiple, each sampling pipe is communicated with the communicating piece through the first control valve, the communicating piece is communicated with the gas storage mechanism, and the gas storage mechanism is communicated with the analysis instrument and the air exhaust mechanism through the second control valve.
2. The on-line continuous sampling monitoring device for multi-point VOCs according to claim 1, wherein the analytical instrument is an air detection instrument.
3. The on-line continuous sampling monitoring device for multi-point VOCs according to claim 1, wherein the pumping mechanism is a suction pump.
4. The on-line continuous sampling monitoring device for multi-point VOCs according to claim 1, wherein the second control valve is a three-way solenoid valve or a two-way solenoid valve.
5. The on-line continuous sampling monitoring device for multi-point-position VOCs according to claim 1, wherein the number of the gas storage mechanisms is plural, the plural gas storage mechanisms are arranged in parallel and are all communicated with the communicating member, the plural gas storage mechanisms are all communicated with the analyzer through the corresponding second control valves, and the plural gas storage mechanisms are all communicated with the air pumping mechanism through the corresponding second control valves.
6. The on-line continuous sampling monitoring device for multi-point-position VOCs according to claim 5, wherein the number of the air pumping mechanisms is at least two, and each air pumping mechanism is at least correspondingly communicated with one air storage mechanism.
7. The apparatus according to claim 6, wherein the number of the gas storage mechanisms is the same as the number of the air pumping mechanisms, a plurality of the gas storage mechanisms correspond to a plurality of the air pumping mechanisms one by one, and each of the gas storage mechanisms is connected to the corresponding air pumping mechanism through the corresponding second control valve.
8. The on-line continuous sampling monitoring device for multi-point VOCs according to any one of claims 1-7, further comprising a pneumatic pressure detection mechanism, wherein the pneumatic pressure detection mechanism is disposed on each of the pipes between the gas storage mechanism and the communicating member.
9. The apparatus according to claim 8, wherein the pressure detection mechanism is a barometer.
10. The on-line continuous sampling monitoring device for multi-point VOCs according to any one of claims 1-7, wherein the length of the sampling tube is 20-100 meters.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921606816.3U CN211235148U (en) | 2019-09-25 | 2019-09-25 | Multi-point VOCs on-line continuous sampling monitoring device |
| PCT/CN2019/113123 WO2021056657A1 (en) | 2019-09-25 | 2019-10-24 | Device and method for performing continuous online sampling and monitoring of vocs at multiple points |
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| CN201921606816.3U CN211235148U (en) | 2019-09-25 | 2019-09-25 | Multi-point VOCs on-line continuous sampling monitoring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557127A (en) * | 2019-09-25 | 2021-03-26 | 广州禾信仪器股份有限公司 | Multi-point VOCs (volatile organic compounds) online continuous sampling monitoring device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557127A (en) * | 2019-09-25 | 2021-03-26 | 广州禾信仪器股份有限公司 | Multi-point VOCs (volatile organic compounds) online continuous sampling monitoring device and method |
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| CP02 | Change in the address of a patent holder |
Address after: 510535 No. 16, Xinrui Road, Huangpu District, Guangzhou, Guangdong Patentee after: GUANGZHOU HEXIN INSTRUMENT Co.,Ltd. Patentee after: Kunshan Hexin Mass Spectrometry Technology Co., Ltd Address before: 510530 Room 102, Room 301 and Room 401, building A3, No. 11, Kaiyuan Avenue, Huangpu District, Guangzhou, Guangdong Patentee before: GUANGZHOU HEXIN INSTRUMENT Co.,Ltd. Patentee before: Kunshan Hexin Mass Spectrometry Technology Co., Ltd |
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